Is my wire retainer worse than my plastic one?

I have had my braces out about 5 months I had plastic retainers till they broke the dentist said I can wear them on a night instead, I recently realised my front teeth have started over lapping n other moved I still have my broken old retainer put that in and my teeth didn't fit or go all the way in like they use to. is it the retainer? Should I wear it for longer? Or will they stay like this

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